NetWorth
LeaderPortfolio
Bon-sik
K
Rank #2151
SOUTH KOREA•technology•LG

Koo Bon-sik

Net Worth
$1.914B
-1.25% (24h)
Koo Bon-sik, born in 1958, is a prominent South Korean businessman and the current chairman of LT Group. As the youngest son of Koo Ja-kyung, co-founder of LG Group, his career has been deeply intertwined with the family's legacy. His wealth stems from his significant stake in LG Corporation and related entities, solidifying his position among South Korea's wealthiest individuals. His career spans across various leadership roles within the LG Group, including Heesung Electronics. Koo Bon-sik's influence extends beyond business; he is part of the influential Koo family that has shaped South Korea's technology and industrial landscape. With a reported net worth of $1.9 billion, Koo Bon-sik continues to play a key role in the strategic direction of LT Group, focusing on electronics, precision manufacturing, and materials.

How to read Koo Bon-sik's profile

Public net-worth figures are estimates. They combine observable inputs—typically listed equity, disclosed transactions, and market prices—with editorial judgment where filings are incomplete (for example, private holdings, debt, or cross-holdings). For Koo Bon-sik, we anchor the narrative to LT Group and LG, then update the headline number as markets move. The chart on this page is meant to show trajectory, not a certified balance sheet.

When you see $1.914B alongside global rank #2151, interpret it as our best synthesis of widely cited ownership and price signals—not a claim about cash on hand. Estimates can diverge from other publishers because of different treatment of options, trusts, charitable vehicles, or illiquid assets. We document the general approach in methodology and welcome corrections via corrections.

Country (SOUTH KOREA) and career milestones on this page are curated for reader context; they should be verified against primary sources when used for research. Editorial metadata for this profile is refreshed on a rolling basis, with deeper audits at least annually (last noted cycle: 2026).

Looking for depth? When available, the dossier and timeline sections below add long-form context beyond the headline number—prioritize those modules when evaluating claims about strategy, controversies, or philanthropic commitments.

The Full Dossier

Early Life and Education

Koo Bon-sik was born on June 28, 1958, in South Korea. He is the youngest son of Koo Ja-kyung, who served as the chairman of the LG Group from 1970 to 1995. Koo Ja-kyung played a crucial role in expanding LG from a chemical firm to a multinational conglomerate. Koo Bon-sik received his education at Shinil High School, graduating in 1976. He then pursued higher education at Korea University, earning a Bachelor of Science degree in Metallurgical Engineering in 1980. Following this, he obtained a Master of Science in Materials Engineering from the University of Michigan in 1985.

Rise to Success

After completing his education, Koo Bon-sik joined Heesung Electric Wire in 1985. He applied his expertise in metallurgical engineering within the company. His career within the Heesung affiliates progressed steadily. Koo Bon-sik served as director of Heesung Engelhard, a joint venture specializing in advanced materials and catalysts. He also served as president of Heesung Electronics, and vice-chairman of Heesung Group.

Key Business Strategies

Koo Bon-sik separated several Heesung Group affiliates to establish LT Group in 2019, transitioning it into a formal holding structure by 2023. He co-manages Heesung Electronics with his brother Koo Bon-neung. The LT Group focuses on electronics components, precision manufacturing, and materials, with key affiliates like LT Precision, LT Metal, and LT Material.

Philanthropy

Information about Koo Bon-sik's direct philanthropic involvements is not readily available in the search results. However, as a member of the Koo family, which has a long history of supporting various causes, it is highly probable that Koo Bon-sik is involved in philanthropic initiatives through the family or group affiliations.

Career Timeline

2019

Established LT Group

Separated from Heesung Group affiliates to form LT Group.

1985

Joined Heesung Electric Wire

Began career, applying metallurgical engineering expertise.

Key Business Ventures & Holdings

CompanyStakeValue
LG Corporation——
LG Electronics——

Net Worth History

In-Depth Analysis

Early Life and Education

Koo Bon-sik was born on June 28, 1958, in South Korea. He is the youngest son of Koo Ja-kyung, who served as the chairman of the LG Group from 1970 to 1995. Koo Ja-kyung played a crucial role in expanding LG from a chemical firm to a multinational conglomerate. Koo Bon-sik received his education at Shinil High School, graduating in 1976. He then pursued higher education at Korea University, earning a Bachelor of Science degree in Metallurgical Engineering in 1980. Following this, he obtained a Master of Science in Materials Engineering from the University of Michigan in 1985.

Rise to Success

After completing his education, Koo Bon-sik joined Heesung Electric Wire in 1985. He applied his expertise in metallurgical engineering within the company. His career within the Heesung affiliates progressed steadily. Koo Bon-sik served as director of Heesung Engelhard, a joint venture specializing in advanced materials and catalysts. He also served as president of Heesung Electronics, and vice-chairman of Heesung Group.

Key Business Strategies

Koo Bon-sik separated several Heesung Group affiliates to establish LT Group in 2019, transitioning it into a formal holding structure by 2023. He co-manages Heesung Electronics with his brother Koo Bon-neung. The LT Group focuses on electronics components, precision manufacturing, and materials, with key affiliates like LT Precision, LT Metal, and LT Material.

Philanthropy

Information about Koo Bon-sik's direct philanthropic involvements is not readily available in the search results. However, as a member of the Koo family, which has a long history of supporting various causes, it is highly probable that Koo Bon-sik is involved in philanthropic initiatives through the family or group affiliations.

Data Sources & Methodology

Figures for Koo Bon-sik are synthesized from the sources below and cross-checked against our net worth methodology. Estimates may lag market moves; see corrections to report discrepancies.

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